Hainan Airlines plans to raise the frequencies of five services from Hefei, starting 31 March.
It will add three weekly services on the Hefei-Dalian route, and four weekly services on routes from Hefei to Haikou and Qingdao, says the airline.
An additional daily frequency on routes from Hefei to Shenzhen and Taiyuan will also be introduced on the same date.
Hainan will use Boeing 737-800 aircraft on the additional services, it adds.
Innovata schedules show that Hainan is the only operator on routes from Hefei to Shenzhen and Dalian.